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Thread: Trojan.JS.Agent.btv

  1. #1
    petrula Guest

    Default Trojan.JS.Agent.btv

    Zone Alarm Extreme Security v9.3.037.000
    Win 7 Pro 64 bit
    Firefox 3.6.14

    In Google search, I look for images of “Staphylococcus aureus”.
    I click on an image.
    A popup of the image appears in a window with the web page showing behind the window.
    When I click the close in the upper right corner of the image window,
    the image window closes and the web page comes forward.
    This is good.

    However, on an evil site, the popup appears to take over.
    Zone Alarm has multiple windows appear.
    None of which I can trust since I don’t know if the evil site
    is using phony Zone Alarm images.

    It is unclear what Zone Alarm should be displaying
    so I would know it is a valid Zone Alarm window.
    What is the sequence of events we should expect Zone Alarm
    to display when Trojan.JS.Agent.btv occurs.

    Second question
    It is unclear to me how a javascript can download software in the browser.
    Supposedly, Java should not allow a download of a virus unless you
    authorize it. Is there a technical programming article with coding showing
    how it is doing this? It shouldn’t be happening unless there is a bug
    in the browser code. What exactly is Trojan.JS.Agent.btv doing.

    Thanks in advance.
    Last edited by petrula; March 2nd, 2011 at 05:14 PM.

  2. #2
    Join Date
    Nov 2004
    Location
    localhost
    Posts
    17,284

    Default Re: Trojan.JS.Agent.btv

    First question I really didn't get it... sorry

    Second question:
    There are literally thousands of different variant of Trojan.JS.Agent, hundreds new every few weeks and only for few a description is present. Otherwise malware experts will spend their time in writing virus descriptions.

    They are part of the Trojan-downloaded family
    http://www.securelist.com/en/threats...ownloader#list

    For an example of a description of a different variant, see for example here:
    http://www.securelist.com/en/descrip...r.JS.Agent.bxr

    For maximum protection see here:
    xyz was not detected. What I should do?

    For a complete step-by-step cleaning procedure please see here:
    Malware Clean-up Guidance

    Cheers,
    Fax

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